<template>
  <div class="middle">
    默认组件
  </div>
</template>

<script>
export default {
  name: '',
  data() { 
    return {

    }
  }
 }
</script>

<style lang="" scoped>
   .middle{
     border: 1px solid red;
     padding:100px;

   }
</style>